Finding the Fourth Proportional to 194,936.31, 268,958.70 and 118,391.31
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Solution
The fourth proportional to 194,936.31, 268,958.70 and 118,391.31 is: 163,347.57
Step by Step Solution
- Step 1: Write the proportion equation
194,936.31 : 268,958.70 = 118,391.31 : x - Step 2: Convert to fraction form
194,936.31/268,958.70 = 118,391.31/x - Step 3: Cross multiply
194,936.31x = 268,958.70 × 118,391.31 - Step 4: Simplify right side
194,936.31x = 31,842,372,828.90 - Step 5: Solve for x
x = 31,842,372,828.90/194,936.31 - Step 6: Final answer
x = 163,347.57
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.